[#PSBT_IN_REQUIRED_HEIGHT_LOCKTIME]
= PSBT_IN_REQUIRED_HEIGHT_LOCKTIME
:mrdocs:

Input map key type for the required height‐based locktime.

== Synopsis

Declared in `<psbt.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
inline constexpr uint8_t PSBT_IN_REQUIRED_HEIGHT_LOCKTIME = 0x12;
----


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